CN105463294A - Strip steel preparation method for bearings - Google Patents
Strip steel preparation method for bearings Download PDFInfo
- Publication number
- CN105463294A CN105463294A CN201510777621.5A CN201510777621A CN105463294A CN 105463294 A CN105463294 A CN 105463294A CN 201510777621 A CN201510777621 A CN 201510777621A CN 105463294 A CN105463294 A CN 105463294A
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- Prior art keywords
- chromium
- sulphur
- phosphorus
- manganese
- silicon
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
Abstract
The invention belongs to the field of strip steel preparation, and particularly relates to a strip steel preparation method for bearings. The method comprises the step of preparing raw material, wherein the raw material is composed of, by weight, 0.86-1.17% of carbon, 0.06-0.46% of silicon, 0.16-0.54% of manganese, 1.32-1.78% of chromium, 0.04-0.34% of phosphorus, 0.004-0.034% of sulphur and the balance iron. By adding the chromium in the formula, the strength of strip steel can be improved, and the cooling speed can be lowered.
Description
Technical field
The invention belongs to band steel preparation field, particularly a kind of band steel Preparation Method for bearing.
Background technology
Bearing band steel needs high strength.The band steel raw material speed of cooling mostly adopted now is too fast, and perviousness is low, insufficient strength.For solving the problems of the technologies described above, being necessary to study a kind of production technique, improving band hardness of steel, reducing speed of cooling.
Summary of the invention
For solving the problem, the object of the present invention is to provide a kind of band steel Preparation Method for bearing.
For achieving the above object, technical scheme of the present invention is:
For a band steel Preparation Method for bearing, comprise the following steps:
(1) prepare burden, select carbon, silicon, manganese, chromium, phosphorus, sulphur, calculate alloy composition, make its component meet following weight percent, carbon 0.86 ~ 1.17%, silicon 0.06 ~ 0.46%, manganese 0.16 ~ 0.54%, chromium 1.32 ~ 1.78%, phosphorus 0.04 ~ 0.34%, sulphur 0.004 ~ 0.034%, surplus is iron.
(2) melting, add manganese, chromium, smelting temperature is between 1100 ~ 1800 DEG C;
(3) interpolation sulphur, phosphorus carry out melting;
(4) refining deslagging, adds charcoal and covers bath surface, make Reduction of Oxide, limpid to melt, adds silicon;
(5) be shaped, cooling;
(6) Heating temperature 450 DEG C, 2 hours time length;
(7) first time dephosphorization;
(8) Heating temperature 760 DEG C, 20 hours time length;
(9) roughing;
(10) second time dephosphorization;
(11) finish rolling;
(12) layer is cold, batches, bundling.
Preferably, described elementary composition weight percent is carbon 0.93 ~ 1.08%, silicon 0.11 ~ 0.41%, manganese 0.21 ~ 0.51%, chromium 1.4 ~ 1.73%, phosphorus 0.08 ~ 0.31%, sulphur 0.008 ~ 0.031%, and surplus is iron.
Preferably, described elementary composition weight percent is carbon 0.95 ~ 1.03%, silicon 0.24 ~ 0.30%, manganese 0.3 ~ 0.41%, chromium 1.5 ~ 1.68%, phosphorus 0.012 ~ 0.26%, sulphur 0.012 ~ 0.026%, and surplus is iron.
Preferably, described elementary composition weight percent is carbon 0.98%, silicon 0.26%, manganese 0.35%, chromium 1.55%, phosphorus 0.18%, sulphur 0.018%, and surplus is iron.
Preferably, described smelting temperature is 1200-1700 DEG C.
Preferably, described smelting temperature is 1300-1600 DEG C.
Preferably, described smelting temperature is 1500 DEG C.
Compared with prior art, beneficial effect of the present invention is as follows: in formula, add chromium, can improve band hardness of steel, reduces speed of cooling.
Accompanying drawing explanation
Fig. 1 is the flow chart of steps of the preparation method of the band steel for bearing of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
On the contrary, the present invention is contained any by the substituting of making on marrow of the present invention and scope of defining of claim, amendment, equivalent method and scheme.Further, in order to make the public have a better understanding to the present invention, in hereafter details of the present invention being described, detailedly describe some specific detail sections.Do not have the description of these detail sections can understand the present invention completely for a person skilled in the art yet.
See Fig. 1, be depicted as the preparation method of a kind of band steel for bearing of the embodiment of the present invention, it is characterized in that, comprise the following steps:
(1) prepare burden, select carbon, silicon, manganese, chromium, phosphorus, sulphur, calculate alloy composition, make its component meet following weight percent, carbon 0.86 ~ 1.17%, silicon 0.06 ~ 0.46%, manganese 0.16 ~ 0.54%, chromium 1.32 ~ 1.78%, phosphorus 0.04 ~ 0.34%, sulphur 0.004 ~ 0.034%, surplus is iron.
(2) melting, add manganese, chromium, smelting temperature is between 1100 ~ 1800 DEG C;
(3) interpolation sulphur, phosphorus carry out melting;
(4) refining deslagging, adds charcoal and covers bath surface, make Reduction of Oxide, limpid to melt, adds silicon;
(5) be shaped, cooling;
(6) Heating temperature 450 DEG C, 2 hours time length;
(7) first time dephosphorization;
(8) Heating temperature 760 DEG C, 20 hours time length;
(9) roughing;
(10) second time dephosphorization;
(11) finish rolling;
(12) layer is cold, batches, bundling.
The implementation process of the embodiment of the present invention is described below by way of embody rule example.
Embodiment 1
(1) prepare burden
In strict accordance with charge calculation, take carbon 0.86KG, silicon 0.06KG, manganese 0.26KG, chromium 1.32KG, phosphorus 0.04%, sulphur 0.004KG, iron 97.556KG.Make to consist of in batching: carbon 0.86%, silicon 0.06%, manganese 0.26%, chromium 1.32%, phosphorus 0.04%, sulphur 0.004%, iron 97.556%.
(2) melting, add manganese, chromium, smelting temperature is between 1100 ~ 1800 DEG C;
(3) interpolation sulphur, phosphorus carry out melting;
(4) refining deslagging, adds charcoal and covers bath surface, make Reduction of Oxide, limpid to melt, adds silicon;
(5) be shaped, cooling;
(6) Heating temperature 450 DEG C, 2 hours time length;
(7) first time dephosphorization;
(8) Heating temperature 760 DEG C, 20 hours time length;
(9) roughing;
(10) second time dephosphorization;
(11) finish rolling;
(12) layer is cold, batches, bundling.
The sintered bearing material use properties detection table of the product prepared by above embodiment is as follows:
| Tensile strength (MPa) | 525 |
| Metallographic nodulizing grade | 3 grades |
| Speed of cooling (DEG C/S) | 0.93℃/S |
Embodiment 2
(1) prepare burden
In strict accordance with charge calculation, take carbon 1.17KG, silicon 0.46KG, manganese 0.54KG, chromium 1.78KG, phosphorus 0.34KG, sulphur 0.034KG, iron 95.676KG.Make to consist of in batching: carbon 1.17%, silicon 0.46%, manganese 0.54%, chromium 1.78%, phosphorus 0.34%, sulphur 0.034%, iron 95.676%.
(2) melting, add manganese, chromium, smelting temperature is between 1100 ~ 1800 DEG C;
(3) interpolation sulphur, phosphorus carry out melting;
(4) refining deslagging, adds charcoal and covers bath surface, make Reduction of Oxide, limpid to melt, adds silicon;
(5) be shaped, cooling;
(6) Heating temperature 450 DEG C, 2 hours time length;
(7) first time dephosphorization;
(8) Heating temperature 760 DEG C, 20 hours time length;
(9) roughing;
(10) second time dephosphorization;
(11) finish rolling;
(12) layer is cold, batches, bundling.
The sintered bearing material use properties detection table of the product prepared by above embodiment is as follows:
| Tensile strength (MPa) | 535 |
| Metallographic nodulizing grade | 3 grades |
| Speed of cooling (DEG C/S) | 0.82℃/S |
Embodiment 3
(1) prepare burden
In strict accordance with charge calculation, take carbon 0.93KG, silicon 0.11KG, manganese 0.21KG, chromium 1.40KG, phosphorus 0.08KG, sulphur 0.008KG, iron 97.262KG.Make to consist of in batching: carbon 0.93%, silicon 0.11%, manganese 0.21%, chromium 1.40%, phosphorus 0.08%, sulphur 0.008%, iron 97.262%.
(2) melting, add manganese, chromium, smelting temperature is between 1100 ~ 1800 DEG C;
(3) interpolation sulphur, phosphorus carry out melting;
(4) refining deslagging, adds charcoal and covers bath surface, make Reduction of Oxide, limpid to melt, adds silicon;
(5) be shaped, cooling;
(6) Heating temperature 450 DEG C, 2 hours time length;
(7) first time dephosphorization;
(8) Heating temperature 760 DEG C, 20 hours time length;
(9) roughing;
(10) second time dephosphorization;
(11) finish rolling;
(12) layer is cold, batches, bundling.
The sintered bearing material use properties detection table of the product prepared by above embodiment is as follows:
| Tensile strength (MPa) | 545 |
| Metallographic nodulizing grade | 3 grades |
| Speed of cooling (DEG C/S) | 0.78℃/S |
Embodiment 4
(1) prepare burden
In strict accordance with charge calculation, take carbon 1.08KG, silicon 0.41KG, manganese 0.51KG, chromium 1.73KG, phosphorus 0.31KG, sulphur 0.031KG, iron 95.929KG.Make to consist of in batching: carbon 1.08%, silicon 0.41%, manganese 0.51%, chromium 1.73%, phosphorus 0.31%, sulphur 0.031%, iron 95.929%.
(2) melting, add manganese, chromium, smelting temperature is between 1100 ~ 1800 DEG C;
(3) interpolation sulphur, phosphorus carry out melting;
(4) refining deslagging, adds charcoal and covers bath surface, make Reduction of Oxide, limpid to melt, adds silicon;
(5) be shaped, cooling;
(6) Heating temperature 450 DEG C, 2 hours time length;
(7) first time dephosphorization;
(8) Heating temperature 760 DEG C, 20 hours time length;
(9) roughing;
(10) second time dephosphorization;
(11) finish rolling;
(12) layer is cold, batches, bundling.
The sintered bearing material use properties detection table of the product prepared by above embodiment is as follows:
| Tensile strength (MPa) | 550 |
| Metallographic nodulizing grade | 3 grades |
| Speed of cooling (DEG C/S) | O.75℃/S |
Embodiment 5
(1) prepare burden
In strict accordance with charge calculation, take carbon 0.95KG, silicon 0.24KG, manganese 0.30KG, chromium 1.50KG, phosphorus 0.12KG, sulphur 0.012KG, iron 96.878KG.Make to consist of in batching: carbon 0.95KG, silicon 0.24KG, manganese 0.30KG, chromium 1.50KG, phosphorus 0.12KG, sulphur 0.012KG, iron 96.878KG.
(2) melting, add manganese, chromium, smelting temperature is between 1100 ~ 1800 DEG C;
(3) interpolation sulphur, phosphorus carry out melting;
(4) refining deslagging, adds charcoal and covers bath surface, make Reduction of Oxide, limpid to melt, adds silicon;
(5) be shaped, cooling;
(6) Heating temperature 450 DEG C, 2 hours time length;
(7) first time dephosphorization;
(8) Heating temperature 760 DEG C, 20 hours time length;
(9) roughing;
(10) second time dephosphorization;
(11) finish rolling;
(12) layer is cold, batches, bundling.
The sintered bearing material use properties detection table of the product prepared by above embodiment is as follows:
| Tensile strength (MPa) | 560 |
| Metallographic nodulizing grade | 3 grades |
| Speed of cooling (DEG C/S) | 0.72℃/S |
Embodiment 6
(1) prepare burden
In strict accordance with charge calculation, take carbon 1.03KG, silicon 0.3KG, manganese 0.41KG, chromium 1.68KG, phosphorus 0.026KG, sulphur 0.026KG, iron 96.528KG.Make to consist of in batching: carbon 1.03KG, silicon 0.3KG, manganese 0.41KG, chromium 1.68KG, phosphorus 0.026KG, sulphur 0.026KG, iron 96.528KG.
(2) melting, add manganese, chromium, smelting temperature is between 1100 ~ 1800 DEG C;
(3) interpolation sulphur, phosphorus carry out melting;
(4) refining deslagging, adds charcoal and covers bath surface, make Reduction of Oxide, limpid to melt, adds silicon;
(5) be shaped, cooling;
(6) Heating temperature 450 DEG C, 2 hours time length;
(7) first time dephosphorization;
(8) Heating temperature 760 DEG C, 20 hours time length;
(9) roughing;
(10) second time dephosphorization;
(11) finish rolling;
(12) layer is cold, batches, bundling.
The sintered bearing material use properties detection table of the product prepared by above embodiment is as follows:
| Tensile strength (MPa) | 570 |
| Metallographic nodulizing grade | 3 grades |
| Speed of cooling (DEG C/S) | 0.7℃/S |
Embodiment 7
(1) prepare burden
In strict accordance with charge calculation, take carbon 0.98KG, silicon 0.26KG, manganese 0.35KG, chromium 1.55KG, phosphorus 0.18KG, sulphur 0.018KG, iron 96.662KG.Make to consist of in batching: carbon 0.98%, silicon 0.26%, manganese 0.35%, chromium 1.55%, phosphorus 0.18%, sulphur 0.018%, iron 96.662%.
(2) melting, add manganese, chromium, smelting temperature is between 1100 ~ 1800 DEG C;
(3) interpolation sulphur, phosphorus carry out melting;
(4) refining deslagging, adds charcoal and covers bath surface, make Reduction of Oxide, limpid to melt, adds silicon;
(5) be shaped, cooling;
(6) Heating temperature 450 DEG C, 2 hours time length;
(7) first time dephosphorization;
(8) Heating temperature 760 DEG C, 20 hours time length;
(9) roughing;
(10) second time dephosphorization;
(11) finish rolling;
(12) layer is cold, batches, bundling.
The sintered bearing material use properties detection table of the product prepared by above embodiment is as follows:
| Tensile strength (MPa) | 580 |
| Metallographic nodulizing grade | 3 grades |
| Speed of cooling (DEG C/S) | 0.6℃/S |
Comparative example
(1) prepare burden
In strict accordance with charge calculation, take carbon 0.30KG, silicon 1.03KG, manganese 0.35KG, phosphorus 0.02KG, sulphur 0.02KG, iron 98.28KG.Make to consist of in batching: carbon 0.30%, silicon 1.03%, manganese 0.35%, phosphorus 0.02%, sulphur 0.02%, iron 98.28%.
(2) reinforced melting
According to first manganese addition, nickel, rear chromatize, vanadium, copper, smelting temperature is at 1100 DEG C.
(3) interpolation sulphur, phosphorus carry out melting.
(4) refining deslagging, adds charcoal and covers bath surface, make Reduction of Oxide, limpid to melt, adds silicon.
(5) be shaped, cooling.
(6) Heating temperature 450 DEG C, 2 hours time length.
(7) roughing.
(8) dephosphorization.
(9) finish rolling.
(10) layer is cold, batches, bundling.
The sintered bearing material use properties detection table of the product prepared by above embodiment is as follows:
| Tensile strength (MPa) | 505 6 --> |
| Metallographic nodulizing grade | 2 grades |
| Speed of cooling (DEG C/S) | 1.2℃/S |
Can be found out by above comparative example, the production method that the present invention adopts can improve band hardness of steel, also effectively can reduce speed of cooling, and improve perviousness, the band steel making it produce is more suitable for bearing.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1., for a band steel Preparation Method for bearing, it is characterized in that, comprise the following steps:
(1) prepare burden, select carbon, silicon, manganese, chromium, phosphorus, sulphur, calculate alloy composition, make its component meet following weight percent, carbon 0.86 ~ 1.17%, silicon 0.06 ~ 0.46%, manganese 0.16 ~ 0.54%, chromium 1.32 ~ 1.78%, phosphorus 0.04 ~ 0.34%, sulphur 0.004 ~ 0.034%, surplus is iron.
(2) melting, add manganese, chromium, smelting temperature is between 1100 ~ 1800 DEG C;
(3) interpolation sulphur, phosphorus carry out melting;
(4) refining deslagging, adds charcoal and covers bath surface, make Reduction of Oxide, limpid to melt, adds silicon;
(5) be shaped, cooling;
(6) Heating temperature 450 DEG C, 2 hours time length;
(7) first time dephosphorization;
(8) Heating temperature 760 DEG C, 20 hours time length;
(9) roughing;
(10) second time dephosphorization;
(11) finish rolling;
(12) layer is cold, batches, bundling.
2. the band steel Preparation Method for bearing according to claim 1, it is characterized in that, described elementary composition weight percent is carbon 0.93 ~ 1.08%, silicon 0.11 ~ 0.41%, manganese 0.21 ~ 0.51%, chromium 1.4 ~ 1.73%, phosphorus 0.08 ~ 0.31%, sulphur 0.008 ~ 0.031%, surplus is iron.
3. the band steel Preparation Method for bearing according to claim 1, it is characterized in that, described elementary composition weight percent is carbon 0.95 ~ 1.03%, silicon 0.24 ~ 0.30%, manganese 0.3 ~ 0.41%, chromium 1.5 ~ 1.68%, phosphorus 0.012 ~ 0.26%, sulphur 0.012 ~ 0.026%, surplus is iron.
4. the band steel Preparation Method for bearing according to claim 1, it is characterized in that, described elementary composition weight percent is carbon 0.98%, silicon 0.26%, manganese 0.35%, chromium 1.55%, phosphorus 0.18%, sulphur 0.018%, and surplus is iron.
5. the band steel Preparation Method for bearing according to claim 1, it is characterized in that, described smelting temperature is 1200-1700 DEG C.
6. the band steel Preparation Method for bearing according to claim 1, it is characterized in that, described smelting temperature is 1300-1600 DEG C.
7. the band steel Preparation Method for bearing according to claim 1, it is characterized in that, described smelting temperature is 1500 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510777621.5A CN105463294A (en) | 2015-11-13 | 2015-11-13 | Strip steel preparation method for bearings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510777621.5A CN105463294A (en) | 2015-11-13 | 2015-11-13 | Strip steel preparation method for bearings |
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| CN105463294A true CN105463294A (en) | 2016-04-06 |
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| CN201510777621.5A Pending CN105463294A (en) | 2015-11-13 | 2015-11-13 | Strip steel preparation method for bearings |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447166A (en) * | 2017-07-26 | 2017-12-08 | 合肥尚强电气科技有限公司 | A kind of dynamo bearing material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925818A (en) * | 2012-11-23 | 2013-02-13 | 中天钢铁集团有限公司 | Corrosion-resistant and high-temperature resistant bearing steel and production process thereof |
| CN103122433A (en) * | 2013-01-31 | 2013-05-29 | 西安交通大学 | Ultrahigh-carbon type bearing steel |
-
2015
- 2015-11-13 CN CN201510777621.5A patent/CN105463294A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925818A (en) * | 2012-11-23 | 2013-02-13 | 中天钢铁集团有限公司 | Corrosion-resistant and high-temperature resistant bearing steel and production process thereof |
| CN103122433A (en) * | 2013-01-31 | 2013-05-29 | 西安交通大学 | Ultrahigh-carbon type bearing steel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447166A (en) * | 2017-07-26 | 2017-12-08 | 合肥尚强电气科技有限公司 | A kind of dynamo bearing material and preparation method thereof |
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Application publication date: 20160406 |